Fixing round length in GURPS

[Say, it isn't that bad!]

Originally Posted by Donny Brook

How about a house rule that says for every third round past the fifth without a Concentrate (Observe) maneurver characters suffer cumulative penalities on things like defending from side hexes, Tactics rolls, etc.?

I like this. The rate of accumulation needs testing, but I think this could be really good combined with the Action Points suggested by Michael Thayne - that is, taking said penalties after running into the negatives for Action Points, and based on how far into the negatives you are.